Science

Sunday, 1 March 2026
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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Tears
The frequency of crying depends on human nature.
There is no equation to calculate how often people cry. It depends on various factors, such as emoti ...
Large Magellanic Cloud
The galaxy appears in many films, anime, and computer games.
Aurora
The phenomenon of the aurora borealis is the reason for increased tourism in the areas where it occurs.
In Finnish Lapland, a hotel (houses imitating igloos) was built, where the aurora can be admired lyi ...
Liver
One of the main symptoms of a malfunctioning liver is a change in skin and eye color.
They can turn yellow because of unprocessed bilirubin, which is a by-product of the catabolism of heme (a precursor to hemoglobin).
Earth
Most people live in the northern hemisphere.
This is because the Northern Hemisphere accounts for 68 percent of all landmass. It is estimated that in the future up to 90 percent of the population may live in this part of the globe.
Nicotine
The name nicotine comes from the name of the French physician Jean Nicot, who recommended tobacco as a medicine in the 16th century.
Nicotine was first isolated in 1828, and its chemical structure was discovered in 1843. Nicotine was first obtained through a chemical process in 1904.
Milky Way
Although not every galaxy has a supermassive black hole at its center, there is one in the center of the Milky Way.
This region, called Sagittarius A*, is a very bright and compact radio source with a mass of 3.7 million solar masses and a diameter of approximately 44 million kilometers.
Milky Way
The solar system is 27.000 light years away from the center of the Milky Way.
It is located on the inner side of the Orion Arm, one of at least four arms of the galaxy. Their exa ...
lava
Magma is formed in deep parts of the Earth's crust.
It is formed in the Earth's upper mantle, a layer of the crust that extends to a depth of about 400 ...
Phobos
Phobos craters are named after astronomers who contributed to the study of the moon, and characters and locations from Jonathan Swift's “Gulliver’s Travels.”
One, for instance, is called “Skyresh,” It was a High Admiral of the Lilliput council.